吹氣孔堵塞對RH循環流量的影響

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基金項目:

20142001

山西省青年科技研究基金資助項目(2013021019-1)

20152013

20152018)

太原科技大學博士啟動基金資助項目(20152008

國家青年科學基金資助項目(51404159)

Effect of nozzles blocking on the circulation flow rate in RH vacuum equipment

1. Collaborative Innovation Center of Taiyuan Heavy Machinery Equipment, Taiyuan University of Science and Technology, Taiyuan 034002, China;
2. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China;
3. Shougang Research Institute of Technology, Beijing 100043, China

摘要: 根據相似原理,以某廠300 t RH為原型建立了1∶4的水模型,集中研究了吹氣孔堵塞對RH循環流量的影響.結果表明,吹氣孔堵塞時,氣量偏差對循環流量影響最大;當吹氣孔對稱堵塞時,吹氣孔堵塞位置的連線與環流方向成0°時循環流量最小,呈90°時循環流量最大;當吹氣孔集中堵塞時,隨吹氣孔堵塞個數的增加,氣泡泵的作用機制由環狀機制向簇群狀機制轉變,循環流量增加.
- RH精煉 /
- 水模型 /
- 循環流量 /
- 吹氣孔堵塞
Abstract: Based on the similarity principle, a water model with a scale of 1:4 of a 300 t RH unit was established to study the effect of different modes of nozzles blocking on the RH circulation flow rate. Results show that the deviation of gas volume is the main factor influencing the circulation flow rate in the case of nozzles blocking. In the situation of symmetrical blocking, the circulation flow rate is minimum when the angle of the attachment of the blocking position and circulation direction is 0o, on the contrary, the circula-tion flow rate is maximum when the angle is 90o. In the situation of concentrated blocking, with the increase of the number of blocked nozzles, the mechanism of bubble pump action shifts from the annular bubble pump mechanism to the cluster bubble pump mechanism and the circulation flow rate is increased.
- RH refining /
- water model /
- circulation flow rate /
- nuzzles blocking